Refractory arch brick



Nov. 26, 1929. R. J. HIMMELRIGHT REFRACTORY ARCH BRICK Filed March 21,1928 and earner Fae..-

RALEIGH J. HIMMELRIGHT, OF NEW ROCHELLE NEW YGRK, ASSIGNOR T0 GENERALREFRACTORIES COMPANY, OF PHILADELPHIA, PENHSYLVJ INIA, A CORPORATION orPENNSYLVANIA REFRACTORY ARCH BRICK Application filed March 21,1928.ScrialNo. 263,871.

My invention relates to locomotive fire' boxes and particularly to anovel interlocking brick arrangement for use in connection therewith.

In certain types of fire boxes a refractory inclined wall or baffle isemployed, the bricks composing; the wall resting on inclined arch tubesarranged in proper position within the fire box. In those fire boxes inwhich the space between the tubes is relatively great, it is customaryto fill the space with pairs of inclined bricks, the inner abutting endsof which are interlocked.

In order to simplify manufacture and installation of these bricks it isdesirable that the interlock arrangement be such that rights and leftsare not required; in other words, so that one pattern may be used forboth bricks of a pair. This is accomplished in previously suggestedconstructions by the use of half tongue and half groove interlockingdevices and in other ways. In each of the forms known to me, theprojections are relatively fragile and likely to be broken in handlingand installation.

In the design here disclosed I provide the abutting faces of the brickwith relatively large, heavy and substantial projections and so arrangethe respective projections and recesses that the functions andadvantages of the preceding forms are retained.

The invention will be more readily understood by reference to theaccompanying drawings, in which- F 1 is a transverse sectional viewthrough a fire box arranged in accordance with my invention;

Fig. 2 is an enlarged sectional view with a pair of arch bricks ininterlocking relation,

Fig. 8 is a perspective view of one of the bricks.

In the drawings the walls of the fire box are indicated. generally bythe numeral 10. Within the fire box are two inclined arch tubes 11 thatact as a support for the interlocking bricks of my invention. Thesebricks which are of duplicate form are numbered 12, 13 and have at oneend a socket 14 fitting the arch tubes, the body of the brick beingprogressively thickened from the lower to 'of projections and recesses,the projections being indicated by the numerals 15 and 16 and therecesses by numerals 17 and 18. The projections and recesses each occupysubstantially one-fourth of the area of the face of the brick andrespectively occupy angularly diametrically opposite positions on saidface. The projections and recesses are of rectangular or right angularform, both in elevation and in cross section, and the projections are.of substantially uniform thickness through. out, thus providing amaximum of material therein. Breakage is thus avoided due to the absenceof small and fragile projections.

It will be obvious that the bricks may be installed without skill on thepart of the workman as each is a counterpart of the other. It is obviousalso that some modification may be made in the construction shownwithout departure from the spirit of my invention.

I claim:

1. In a locomotive arch the comb of a pair of bricks adapted to besupported in inclined relation with their abutting ends interlocked, theends being counterparts the face of each end consisting of twoprojections and two recesses all of rectangular cross section eachprojection and each recess occupying substantially one-fourthof the areaof the face.

2. In a locomotive arch the comb of a pair of bricks adapted to besupported in inclined relation with their abutting ends interlocked, theends being counterparts the face of each end consisting of twoprojections and two recesses all of square outline as viewed from theface of the projection and of right angular transverse section, eachprojection and each recess occupying one-fourth of the area of the face.

3. A brick for locomotive arches comprising a body of refractorymaterial with the face of one end in a plane at an acute angle to thelongitudinal axis of the brick, the face being provided with two Iprojections each covering substantially one-fourth of the area of theface, the material comprising theprojections being of substantiallyuniform thickness throughout.

4. A brick for locomotive arches comprising a body of refractorymaterial With the face of one end in a plane at an acute angle to thelongitudinal-axis of'the brick, the face being provided with twoprojections each' covering substantially one-fourth of the area oftheface, the material comprising the .pro-

jections being of substantially'uniformthicko ness throughout,theproj'ectionsbeing' flanked by recesses covering the remainder of thearea of the face.

'5. A brick for locomotive arches comprising a'body of refractorymaterial with the face of one end in a planeat anacute angle to thelongitudinal axis of the brick,-the 'face being-provided with tWo;pro,jections eaclrcovering substantially onesfourth-of the area of the.face,-thermater ial comprising-. theprojections being of substantiallyuniform thickness throughout, the body of \thebrick being of graduallyincreased thickness from its lower to upperend. V

In testimony Whereoflhave affixed any-signature.

'LRALEIGH J. HIMMELRIGHT.

